The following is my requirement. I need to wrap any of my user-defined type to SYS.AQ$_JMS_OBJECT_MESSAGE. SYS.AQ$_JMS_OBJECT_MESSAGE has the following fields.SQL> desc SYS.AQ$_JMS_OBJECT_MESSAGE;Name Null? Type----------------------------------------- -------- ----------------------------HEADER AQ$_JMS_HEADERBYTES_LEN NUMBER(38)BYTES_RAW RAW(2000)BYTES_LOB BLOB